Cystic Hygroma Follow-up
- Author: Jason L Acevedo, MD; Chief Editor: Glenn C Isaacson, MD, FACS, FAAP more...
Complications
Complications include airway obstruction, hemorrhage, infection, and deformation of surrounding bony structures or teeth if left untreated.
Complications from the surgical excision of a cystic hygroma (CH) are myriad and are related to the location and structures adjacent to the mass; these include damage to a neurovascular structure (including cranial nerves), chylous fistula, chylothorax, hemorrhage, and recurrence. Most recurrences occur within the first year but have been reported to occur as long as 10 years after excision.
Prognosis
Unlike in hemangiomas, spontaneous resolution of CH is uncommon. Recurrence is rare when all gross disease is removed. If residual tissue is left behind, the expected recurrence rate is approximately 15%.
In prenatal CH, diagnosis after 30 weeks' gestation is considered a positive prognosticator.
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